Heeelp! I chose full screen mode and it doesn't work, it's bigger than the screen! And the windowed mode option is outside the screen so I can't click it. I reinstalled it a few times, but it appears in full screen by default!
Edit: I fixed it! I launched it with RenPy and it works now (it opened in windowed mode, but it worked completely fine when I went full screen). Still, this should be fixed.